Security Basics mailing list archives
RE: Interesting One
From: "Carol Stone" <carol () carolstone com>
Date: Wed, 30 Oct 2002 22:35:08 -0500
-----Original Message----- From: ATD [mailto:simon () snosoft com] Sent: Wednesday, October 30, 2002 6:08 PM I have heard similar claims from "agencies" about the ability to recover data after multiple re-writes. I also happen to know that several of these "agencies" when doing drive disposal, literally drill holes in their drives then incinerate them. That is after they wipe the drive clean several times. I'd assume that there is a reason for such paranoia, wouldn't you? Or do you think they are just playing it super safe?
The Bruce Schneier reference I promised the list is on pages 253 - 254 and yes, he's talking about magnetic force microscopy but no, he doesn't provide any footnotes. He just has a couple pages of heavy-duty reading listed at the back finished with an apology to all the other references he forgot to mention. But to answer your question - if you're a government and you know how to recover data that's been overwritten some number of times, surely you're also working on improving on that number and expecting other governments and shady characters to do the same? I imagine whatever was just barely possible last year is now merely difficult. With enough time, money and intent, I've no doubt that 30 times is a perfectly reasonable number. But I can't imagine anyone operating with something much less than a governmental budget being able to afford to become particularly good at recovering data overwritten *that* many times. Then again, maybe I'm just naive. I imagine if anyone *really* wanted any information about me, they probably wouldn't have to do anything more expensive, difficult or high-tech than paw through my trash. -carol stone
Current thread:
- RE: Interesting One lvickers (Oct 31)
- <Possible follow-ups>
- RE: Interesting One Jimmy Liang (Oct 31)
- Re: Interesting One easy (Oct 31)
- RE: Interesting One Michael Vaughan (Oct 31)
- Re: Interesting One Candice Ward (Oct 31)
- RE: Interesting One Tim Donahue (Oct 31)
- RE: Interesting One Carol Stone (Oct 31)
- RE: Interesting One Rygg Christian (Oct 31)
- RE: Interesting One Trevor Cushen (Oct 31)
- Re: Interesting One ONEILL David J (Nov 01)
- Re: Interesting One Greg van der Gaast (Nov 01)
- RE: Interesting One Leonard.Ong (Nov 01)
- RE: Interesting One Holmes, Ben (Nov 01)
- RE: Interesting One Trevor Cushen (Nov 01)
- Re: Interesting One Meritt James (Nov 01)
- Re: Interesting One Chet Uber (Nov 01)
- Re: Interesting One Pablo Gietz (Nov 01)
(Thread continues...)